3 years ago

Solve the system r + s = -12

2 answers:

6 0

r + s = -12 so r = -s - 12
4r - 6s = 12

substitute r = -s - 12 into 4r - 6s = 12

4r - 6s = 12
4(-s - 12) - 6s = 12
-4s - 48 -6s = 12
-10s = 60
s = -6

r = -(-6) - 12
r = 6 - 12
r = -6

answer
B -6,-6

umka2103 [35]3 years ago

5 0

Answer:

B. (-6,-6)

Step-by-step explanation:

r + s = -12 so r = -s - 12

4r - 6s = 12

substitute r = -s - 12 into 4r - 6s = 12

4r - 6s = 12

4(-s - 12) - 6s = 12

-4s - 48 -6s = 12

-10s = 60

s = -6

r = -(-6) - 12

r = 6 - 12

r = -6

So therefore the answer is (-6,-6).

You might be interested in

Given: -7x<-21 choose the solution set

Ahat [919]

Answer:

x > 3

Step-by-step explanation:

The only thing you need to do is just divide both sides by -7

-7x/-7<-21/-7

x>3

I hope this helped!! Good luck (:

6 0

2 years ago

Convert into vertex form. Give the vertex. y = 3x² – 24x + 46

gavmur [86]

Here you go! Hope this helps!!!

7 0

3 years ago

Which expression is equivalent?

gregori [183]

The correct option is: Option (C) $log_3c - log_{3}9$

Explanation:
It is the property of log that if it contains the fraction, it can be expressed as the difference of the log of numerator and the log of denominator.

The general form is:
$log( \frac{x}{y} ) = log(x) - log(y)$

Hence the correct answer is $log_3c - log_{3}9$ .

8 0

3 years ago

A rectangle has a length of 7 units and a width of 4 units. One vertex of the rectangle is (0,0).

Ulleksa [173]

Answer:

Step-by-step explanation:

6 0

3 years ago

Write as a single power of 6 (6^5)^4

babunello [35]

Answer:

6^20

Step-by-step explanation:

When two indices are in brackets, you just have to multiply them.

3 0

3 years ago